/*
 * Copyright (c) 2010-2023. Axon Framework
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.axonframework.util;

/**
 * Resolves certain parameters from the classpath.
 *
 * @author Milan Savic
 * @since 4.6.0
 */
public final class ClasspathResolver {

    private static final boolean PROJECT_REACTOR_ON_CLASSPATH;

    static {
        boolean fluxOnClasspath = true;
        try {
            Class.forName("reactor.core.publisher.Flux", false, ClasspathResolver.class.getClassLoader());
        } catch (ClassNotFoundException e) {
            fluxOnClasspath = false;
        }
        PROJECT_REACTOR_ON_CLASSPATH = fluxOnClasspath;
    }

    /**
     * Return {@code true} if Project Reactor is on classpath, {@code false} otherwise.
     *
     * @return {@code true} if Project Reactor is on classpath, {@code false} otherwise.
     */
    public static boolean projectReactorOnClasspath() {
        return PROJECT_REACTOR_ON_CLASSPATH;
    }

    private ClasspathResolver() {
        // not to be instantiated
    }
}
